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Lelu [443]
3 years ago
13

Wnich statement best describes the purpose of Earth's spheres?

Biology
2 answers:
sineoko [7]3 years ago
7 0

Answer:

They work together as open systems to cycle matter through ecosystems. Answer a

Explanation:

Just toke Test for edge 2020

zloy xaker [14]3 years ago
5 0

Answer:

Its A on edg

Explanation:

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About how long does it take for elimination of the uterine lining to complete once it begins to slough off
inna [77]
The uterine lining, or endometrium, is the internal layer of the uterus which thickens and gets filled with blood vessels in preparation to receive a fertilized egg. If this does not happen, the uterus removes this extra layer through the vagina, in a process called menstrual flow, which lasts 5 days average.
6 0
3 years ago
True of false Mendel realized that when he crossed two pea plants that were the offspring of a pea plant with yellow peas and a
Sonbull [250]

Answer:

False

Explanation:

Mendel realized that the F2 had a phenotypic ratio 3:1, meaning 3/4 = 75% were yellow and 1/4 = 25% green.

Mendel observed that the F1 expressed only one of the alternative variants (in this case, only yellow seeds appeared), while the other variant (green) disappeared. Mendel named dominant the expressed variant. Mendel allowed auto pollination and observed that in the second generation, F2, the other disappeared variant reappeared. Both alternative variants were present in the F2. Mendel named recessive the second alternative variant.

Mendel thought that hereditary traits determined by discrete factors were the possible explication for these phenotypes. These factors should have been present in the F1 in pairs. One of them came from one parental plant, and the other factor came from the other plant. These factors then separated again when sex cells were produced, giving two types of gametes, each with only one factor.

Mendel concluded that each individual (plant) has a pair of factors (alleles), one for each trait (yellow and green) and that the pair separates (segregates) during the formation of the gametes. This conclusion is known as the segregation principle (First Mendels´ Low).

4 0
3 years ago
Which of the following are examples of natural discharge areas for underground water?
Andre45 [30]

Answer:lakes and swamps

Explanation:any thing that is not man made

7 0
2 years ago
Since oxygen gas is being released, it can be inferred
almond37 [142]

Answer:

Option A

Explanation:

The answer is option A or "producing glucose." Glucose is a sugar that is a main component for all living organisms because it contains carbohydrates. When oxygen is being released from a plant it means that it's producing glucose which is released through the plants stomata.

Hope this helps.

3 0
3 years ago
Question 1 Antibody functions include all of the following except ________. A. binding and inactivating chemical toxins released
professor190 [17]

Answer:

C)

Explanation:

antigen binding to B cell receptors

4 0
3 years ago
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