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Sedaia [141]
3 years ago
14

EARTH SCIENCE //What is true about ice and liquid water?

Biology
2 answers:
Sophie [7]3 years ago
8 0

Answer: B

Explanation:

When water freezes it expands.

Hope I helped!!!

Alborosie3 years ago
8 0
Answer: B

Ice floats on water!! it’s less dense- there’s also more space between molecules because of hydrogen bonding.

hope that helps!
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Write an 2 paragraphs about germination! PLEASE ASAP ☹
balu736 [363]

Germination is a process where plants and other organisms emerge from gymnosperm/angiosperm seeds and start their growth. Gymnosperms are seeds that are not protected by an ovule. Angiosperms are vascular plants that grow fruit and flowers, which are protected by ovule. Sprouting of a seedling from a seed is an example of germination. Fully developed seeds contain an embryo, that store food reserves and are wrapped in the seed coat. Some factors of successful germination include water, oxygen, temperature, type of soil, and light intake.

3 0
3 years ago
The plasma cells of the immune system are responsible for secreting protein antibodies into the bloodstream. Within the plasma c
Butoxors [25]

Answer:

Ribosomes, endoplasmic reticulum, Golgi apparatus, vesicles.

Explanation:

The endomembrane system in eukaryotes has divided the cell organelles into the structural and functional unit. This system plays an important role in the protein processing, its sorting and transport of protein.

The protein is prepared from the plasma cells. The antibodies is made on the ribosomes by the translation process. From the ribosomes, it will move to the endoplasmic reticulum for the glycosylation and protein folding. Then it moves to the golgi for the further protein packaging and processing. With the help of the vesicles it moves to its destination part in the cell.

Thus, the correct answer is option (d).

8 0
3 years ago
The role of the excretory system is to rid the body of toxic waste products. Which of the following body systems also plays a di
pshichka [43]
C
The respiratory system removes the waste carbon dioxide produced from aerobic respiration in the body.
8 0
3 years ago
A couple planning their family are aware that through the past three generations on the husband's side a substantial number of s
Nesterboy [21]

Answer:

a) There are lots of genes on chromosome 1 could be affected, and the gametes could be imbalanced (missing segments of DNA or whole chromosomes)

b) Roughly 50%

c) No. I would advise that the couple undergo preimplantation genetic diagnosis, so that a zygote carrying the normal copy of chromosome 1 could be selected.

Explanation:

Chromosome 1 is one of the largest and most gene rich chromosomes. An inversion that covers 70% of its length would cover lots of genes.

While an inversion on its own would not seem problematic (as all the genes on the chromosome are still there), when it comes to meiosis, the sister chromatids would not be able to correctly align, and crossing over would further complicate this. It could also lead to unbalanced gametes missing entire parts of the chromosome. Therefore, there are likely numerous genes that will be affected and messed up by the inversion.

This could explain the high incidence of past still births, as if lots of genes are affected, and non-functional, the pregnancy would be rendered non-viable, or highly deleterious causing premature death.

b) There is a 50% chance of a child inheriting the defective copy of chromosome 1 (and 50% of a chance of them inheriting the normal chromosome 1. Therefore, there is likely a 50% chance that future offspring would be affected by defects

c) No. I would advise that the couple undergo preimplantation genetic diagnosis. In this, the couple undergoes in vitro fertilization (IVF). When embryos are produced through IVF, they can then be tested for the presence of the abnormal chromosome. Embryos will only be implanted into the mother if the normal chromosome 1 is present.

6 0
3 years ago
Is the pH of Claire's small intestine below, within, or above the optimal range of each enzymes?
Margaret [11]

Answer: Protease is within

Lipase is within

Carbohydrase is within

Explanation:

Because a pH of 9.1 is within the green area for every graph, Claire’s pH is within the optimal range for every enzyme.

6 0
3 years ago
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