Which are more closely related to complex organisms bacteria or archaea?
Recent evidence indicates that Archaea and Eukarya are more closely related to each other than either is to Bacteria. According to the evidence, all three domains of life share a common ancestor that probably existed more than 3 billion years ago (bya).
How do archaea and bacteria differ Weegy?
Archaea and bacteria differ in that: Archaea can live in environments with extreme conditions such as temperature, while bacteria can’t. This answer has been confirmed as correct and helpful.
Which of the following scenarios would prevent a population?
The population is evolving, and natural selection is favoring one allele over another would prevent a population from being in Hardy-Weinberge equilibrium. This answer has been confirmed as correct and helpful.
Which of the following does not describe a function of aggressive animal behavior?
which of the following does not describe a function of aggressive animal behavior. Aggressive behavior leads to fights that allow strong animals kill off weaker members of the species. -does not describe a function of aggressive animal behavior. This answer has been confirmed as correct and helpful.
What is the function of aggressive behavior?
(2) Aggression can be used as a means of coercing the other person into doing something. An individual is likely to use such a power strategy if he/she is lacking in self-confidence or a perspective for influencing the target person by more peaceful strategies.
Which of the following is not a required process for survival of animals?
Movement is not a required process for the survival of animals. Movement is not a required process for the survival of animals.
Which of the following statements is not true about an animal’s circadian rhythm?
It’s not influenced by genetics, only the time of day is not true about an animal’s circadian rhythm. This answer has been confirmed as correct and helpful.
Which processes in animals are regulated by circadian rhythms?
Importance in animals. Circadian rhythmicity is present in the sleeping and feeding patterns of animals, including human beings. There are also clear patterns of core body temperature, brain wave activity, hormone production, cell regeneration, and other biological activities.
Which statement is not true about the circadian rhythm?
The answer is : It cannot be adjusted. This is not true of the Circadian Rhythm.
Which of the following does not generally occur Weegy?
Two different sperm both fertilizing the same egg. -does not generally occur. This answer has been confirmed as correct and helpful.
Which neurotransmitter would you expect to see in high quantities?
Dopamine
Which structure or substance is responsible for helping filter and clean air?
Cilia
Which of the following is formed when a group of tissues Weegy?
Organ is formed when a group of tissues works together to perform a common function.
What is formed by a group of tissues that work together?
When a group of tissues work together to perform a particular role in the human body, they make up an organ.
What is a group of tissues that work together to carry out a function in the body?
The Group of tissues performing particular functions in the body is called an organ or an organ is a structure composed of at least two or more tissue types. Each tissue performs a specific function of the body. Several organs together constitute an organ system.
What is formed by groups of tissues?
Groups of Tissues Form Organs Two or more tissues working together can do a lot more. An organ is a structure made of two or more tissues that work together. The heart (Figure below) is made up of the four types of tissues. The four different tissue types work together in the heart as they do in the other organs.
What are the 3 embryonic tissues?
All cells and tissues in the body derive from three germ layers in the embryo: the ectoderm, mesoderm, and endoderm.
What are embryonic layers?
The three germ layers are the endoderm, the ectoderm, and the mesoderm. Cells in each germ layer differentiate into tissues and embryonic organs. The ectoderm gives rise to the nervous system and the epidermis, among other tissues. The mesoderm gives rise to the muscle cells and connective tissue in the body.
What are germinal layers?
Germ layer, any of three primary cell layers, formed in the earliest stages of embryonic development, consisting of the endoderm (inner layer), the ectoderm (outer layer), and the mesoderm (middle layer). …
Which germ layer develops first?
endoderm
What develops from the mesoderm?
The mesoderm gives rise to the skeletal muscles, smooth muscle, blood vessels, bone, cartilage, joints, connective tissue, endocrine glands, kidney cortex, heart muscle, urogenital organ, uterus, fallopian tube, testicles and blood cells from the spinal cord and lymphatic tissue (see Fig.
What develops from the ectoderm?
The ectoderm will form the outer components of the body, such as skin, hair, and mammary glands, as well as part of the nervous system. For animals with three germ layers, after the endoderm and ectoderm have formed, interactions between the two germ layers induce the development of mesoderm.
What are the 3 primary germ layers?
Three primary germ layers Gastrulation is a key phase in embryonic development when pluripotent stem cells differentiate into the three primordial germ layers: ectoderm, mesoderm and endoderm.
What is the endoderm?
Endoderm, the innermost of the three germ layers, or masses of cells (lying within ectoderm and mesoderm), which appears early in the development of an animal embryo.