Which two features indicate that a cell is a plant cell and not an animal cell. A. lysosome, vacuole B. cell membrane, flagella C. cell wall, vacuole D. nucleus, lysosome

Answers

Answer 1

Answer: C.Cell wall,Vacuole .
Hope i helped :)

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What are traces or remains of organisms that lived in the past? A. adaptations
B. mutations
C. traits
D. fossils

Answers

The correct answer is D.) Fossils.

My reason being is because we have prove that dinosaurs existed , we got that proof from fossils.

I really hope that this helps.

Answer: Fossils

Explanation:

A ____ is any part of the experiment that can vary or change during the experiment. A. control B. variable C. temperature D. hypothesis

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Answer:

Explanation:

Your hypothesis can and will most likely change during the activity.

Sponges have collar cells that trap food and ingest it by or by the enzymes of lysosomes.

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One type of organisms known as sponges have collar cells that trap food and ingest it by ___ or by the enzymes of lysosomes. The word that would best complete the sentence is "phagocytosis". This is also most commonly known as the food-eating that is the process of engulfing food.

The statement is correct. Sponges engullf food by the process of phagocytosis. The membrane fuses with the food and takes it inside, where they are acted upon by the food breaking enzymes, lysozymes, which convert food into simpler utilizable form. This process is most common in some unicellular organisms like sponges, and amoeba.

please help me If a heterozygous dominant tall pea plant is crossed with a short pea plant, what is the expected phenotypic ratio of tall:short plants? 1:1 1:2 3:1 all tall all short

Answers

Assuming a diallelic gene exhibiting complete dominance, with tall plants being the dominant phenotype and short plants the recessive one, the cross of a heter0zyg0us plant with a short one results in a phenotypic ratio 1:1.

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We know that the cross involved a heter0zyg0us dominant tall pea plant and a short pea plant.

We will assume a diallelic gene coding for this trait, and exhibiting complete dominance. This means that the dominant allele completely masks the expression of the recessive allele.

So,

h0m0zyg0us dominant genotype ⇒ dominant phenotype

heter0zyg0us genotype ⇒ dominant phenotype

h0m0zygous recessive genotype ⇒ recessive phenotype

If the heter0zyg0us plant exhibits the dominant phenotype, it means that the allele coding for tall plants in the dominant allele.

So let us say that

T is the dominant allele that codes for tall plants

t is the recessive allele that codes for short plant

According to this information, the tall plant is Tt and the short plant is tt.

So let us make the cross,

Cross: tall plant with short plant

Parentals) Tt x tt

Gametes) T t t t

Punnett square) T t

t Tt tt

F1) Genotype

2/4 = 1/2 = 50% of the progeny is expected to be heter0zygous, Tt

2/4 = 1/2 = 50% of the progeny is expected to be h0m0zyg0us recessive, tt

Genotypic ratio ⇒ 1:1

Phenotype

2/4 = 1/2 = 50% of the progeny is expected to be tall plants

2/4 = 1/2 = 50% of the progeny is expected to be short plants

Phenotypic ratio ⇒ 1:1

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brainly.com/question/11552649?referrer=searchResults

dominant trait = T (tall)
recessive trait = t (short)

heterozygous, meaning different, tall pea plant = Tt
short, short being recessive, pea plant = tt

phenotype means physical looks, which is either tall or short

T t

t | Tt tt
t | Tt tt

two Tt & two tt meaning there are 2 tall and two short. therefore,
1:1

Describe two life zones in the ocean and how organisms are affected by the conditions in each zone.

Answers

There are two main life zones in the ocean. The first one is the coastal zone - the zone near the coast. In this zone, tides expose some part of the see bottom for some part of each day, so some of the organisms in this part can live both under the water and dried out for hours. Also, this part of ocean characterize higher temperature and higher amount of nutrient-rich matter that supports life. Therefore the 90% of all sea lives in the coastal zone. The second zone is the open sea which include the rest of the ocean away from the land. It can be divided in two parts: neretic zone, in which sunlight penetrates the whole water column and oceanic zone, which is characterized by darkness and very high pressure.

Answer:

Explanation:

Scientists were motoring a meteor headed toward earth. It moved off course , but some pieces of rock entered the earths atmosphere . Which atmospheric layer protected the earth against the danger of the rocks ? A.the troposphere B.the stratosphere C.the mesosphere D.the thermosphere

Answers

The correct option is C.

The atmosphere is made up of five different layers, which are: exosphere, thermosphere, mesosphere, stratosphere and troposhere. The farthest layer is the exosphere while the nearest one to the earth surface is the troposphere. Each of these layers have their specific functions. The mesosphere is the one that is responsible for protecting the earth surface from meteors and asteroids. The mesosphere functions by burning up the greater parts of these substances before they enter the earth surface.

The answer is C. The atmospheric layer that protects the Earth against danger of the rocks is the mesosphere. This layer is above the stratosphere. Meteors are rocks from the space that enter the atmosphere. Meteors burn as they go through the mesosphere layer. However, not all are completely burned some survives and still enter the Earth's surface. These are then called meteorites.

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