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3 years ago

The endocrine system carries out its job by releasing target cells into the bloodstream.

1 answer:

5 0

False! The endocrine system carries out its job by releasing hormones which then travel through the blood stream to target cells where they interact and create a hormonal change in those cells. the main organs of the endocrine system are the pituitary gland, the hypothalamus, and the thyroid.

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True or false type b blood has a antigens and anti-b antibody

STALIN [3.7K]

False. Type B blood has B antigens and anti-A antibodies.

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4 years ago

Analyze the data about nitrogenous base content of DNA from various species. Percentages of Bases in Five Organisms Source of DN

Troyanec [42]

Answer:

When analyzing data on the nitrogenous base content of the DNA of various species, the claims are supported by the data:

In any one species, the amount of adenine closely approximates that of thymine.
In any one species, the amount of guanine closely approximates that of cytosine.
The amounts of A, T, G, and C in DNA varies from species to species.

(options A, B and D)

Explanation:

Organizing the data has to:

Source of DNA A T G C

Streptococcus 29.8 31.6 20.5 18.0

Yeast 31.3 32.9 18.7 17.1

Herring 27.8 27.5 22.2 22.6

Human 30.9 29.4 19.9 19.8

E. Coli 24.7 23.6 26.0 25.7

DNA is the molecule that contains the genetic information of each species, formed by sequences of nitrogenous bases Adenine, Thymine, Cytosine and Guanine.

Since Adenine and Thymine -as well as Cytosine and Guanina- are complementary, the percentage of them will be very similar in each DNA molecule.

The genetic information -which determines the physical and functional characteristics of each organism- is encoded in the DNA and is different for each species, so the percentages of nitrogenous bases vary from species to species.

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3 years ago

What is photosynthesis?

Aleks [24]

Answer:

the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.

Explanation:

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3 years ago

Read 2 more answers

What populations (other organisms) are affected by Africanized honeybees? HELP

Ugo [173]

Answer:

hope it help ☺️

Explanation:

Various environmental factors having negative effect on bees fitness are: intensive agriculture with included regular pesticides use, deficiency of eminence food and loss of habitat, pathogens and pests (Brutscher et al., 2016, Goulson et al., 2015a, McMenamin and Genersch, 2015, Tantillo et al., 2015).

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3 years ago

Which of the following can cause variety in a species?

Gekata [30.6K]

D.mutations
Im sure it cannot be anything else

4 0

3 years ago