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saul85 [17]
3 years ago
10

The selective advantage of radial symmetry for sessile and free floating animals

Biology
1 answer:
Sever21 [200]3 years ago
7 0

Answer:

organisms, radial symmetry is useful because the animal can just "sit down" and grab food or detect threats from all directions.

Explanation:

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If an Arctic polar bear is transferred to a zoo in tropical Singapore, it will not be able to survive. What could be the reason
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A, because its thick fur is designed to keep it warm, it would over heat and unfortunatly die
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Please answer number 2!
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If later is was 100 million years ago, later b would be 200 million years ago (because it is 100millions years prior to a). And therefore layer c must b 300 million years ago.
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What observations are consistent with the conclusion that DNA serves as the genetic material in eukaryotes? Select the four corr
11111nata11111 [884]

Answer:DNA is shown to be the genetic material in bacteria and some phages.

DNA is shown to be present in mitochondria, chloroplasts and nucleus, where genetic function is performed

Specific genes can be isolated and spliced into bacterial DNA, which can be inserted into a bacterial cell, and then its genetic expression is monitored.

DNA and RNA are found to be the only macromolecules in eukaryotes that consist of a set of subunits which can combine in unique sequence

Explanation:

1. Lipds is another macro molecule with different subnits  of  fatty acids and glycerol,therefore the option ( DNA is found to be the only macro molecule in Eukaryotas that has different sub units) is WRONG.

2 The   correlation of action and absorption spectra varies with different organisms DNA. e..g  in viral cells  there is a wide difference between the absorption and action spectra, that is no correlation, while  some bacterial cells showed correlations. The option(For DNA, content in various cell types action and absorption spectra of ultraviolet light are correlated IS WRONG.

4 0
3 years ago
The behavioral genetics approach __________. examines the direct influence of genes by studying behavior at the cellular leveL c
natali 33 [55]

Answer:

relies on the evaluation of dreams and the unconscious desires.

Explanation:

Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.

A trait refers to the specific features or characteristics possessed by a living organism. It is essentially transferred from the parent of a living organism to her offspring and as such distinguishes him or her. Some examples of traits in genetics are colorblindness, handedness, curly hair, height, complexion, weight, hair color, dimples, tongue-roll, etc.

This ultimately implies that, the manner in which living organism such as humans look and behave is largely dependent on both the traits inherited from their parents and the environment in which they grew up or stayed.

Hence, the behavioral genetics approach relies on the evaluation of dreams, unconscious desires, twin, family, and adoption studies which are used to investigate the gene possessed by living organisms or their environment interactions.

4 0
3 years ago
The megasporangium in a pine cone is surrounded by an integument with a small opening called the?
zhannawk [14.2K]

The megasporangium in a pine cone is surrounded by an integument with a small opening called the micropyle.

Integuments in flowers are the maternal tissues or having a maternal beginning, as they originate from the ovular tissue or chalazal tissue (part of the lady reproductive gadget of a flower). A time period integument merely refers to the protecting layer. In terms of botany, an integument is a layer encircling the ovule.

A mature ovule consists of a meal tissue included by means of one or destiny seed coats, called integuments. A small establishing (the micropyle) within the integuments permits the pollen tube to enter and discharge its sperm nuclei into the embryo sac, a large oval cellular in which fertilization and improvement arise.

Learn more about integument here: brainly.com/question/2801375

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