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3 years ago

Why is the energy flow in an ecosystem important?

Biology

1 answer:

loris [4]3 years ago

8 0

Answer:

Ecosystems maintain themselves by cycling energy and nutrients obtained from external sources. ... The low rate of energy transfer between trophic levels makes decomposers generally more important than producers in terms of energy flow. I hope this helps! :)

Explanation:

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it takes a long time for rock to break down into soil.what type of weathering occurs when acids come in contact with the rock

AlexFokin [52]

Answer:

Explanation:

The rock then expands and is weakened. Sometimes rainwater contains acid (acid rain). When this comes in contact with rocks such as limestone, it slowly dissolves the rock. The most common forms of weathering are oxidation, hydrolysis and carbonation

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4 years ago

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Where does the right ventricle send blood?

ehidna [41]

Answer:

The correct option is : c. the lungs

Explanation:

The heart is a muscular organ which is divided into four chambers in the humans, birds and other mammals. The four chambers of the heart are: right ventricle, left ventricle, right atria, left atria.

The right ventricle of the heart receives the deoxygenated blood from right atrium and then sends the deoxygenated blood to the lungs, through the pulmonary valve and arteries.

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3 years ago

Aronia _____. A) have the same function as sporangia B) are the sites where male gametes are produced C) make asexual reproducti

Ivahew [28]

Answer:

C) make asexual reproductive structures

Explanation:

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_______ aid in the immune system to fight infections.

Tom [10]

White blood cells (D) aid in the immune system to fight infections.

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3 years ago

Determine the phenotypic ratios of the offspring. 9 yellow-inflated : 3 yellow-constricted : 3 green-inflated: 1 green-constrict

skad [1K]

From a cross between dihybrid individuals, whose diallelic genes code for one trait each, expressing complete dominance, the phenotypic ratio is B) 9 green-inflated : 3 green-constricted : 3 yellow-inflated :1 yellow-constricted.

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Since I do not have the cross, I will assume the cross involves two dihybrid individuals by looking at the options.

So, let us picture the situation,

Two diallelic genes code for one trait each, color and inflated/constricted pods.
G allele is the dominant and codes for green pods
g allele is recessive and codes for yellow pods
I is the dominant allele and codes for inflated pods
i is recessive and codes for constricted pods
These genes are not linked

1st Cross) Two h0m0zyg0us individuals

Parental) GGII x ggii

F1) 100% GgIi

2nd Cross) Selfcross between F1 individuals

Parentals) GgIi x GgIi

Gametes) GI, Gi, gI, gi

GI, Gi, gI, gi

Punnett square) GI Gi gI gi

GI GGII GGIi GgII GgIi

Gi GGIi GGii GgIi Ggii

gI GgII GgIi ggII ggIi

gi GgIi Ggii ggIi ggii

F2) Genotype

1/16 GGII
2/16 GGIi
1/16 GGii
2/16 GgII
4/16 GgIi
2/16 Ggii
1/16 ggII
2/16 ggIi
1/16 ggii

Phenotype

9/16 G-I- ⇒ Green and Inflated
3/16 G-ii ⇒ Green and constricted
3/16 ggI- ⇒ Yellow and inflated
1/16 ggii ⇒ Yellow and constricted

Phenotypic ratio 9:3:3:1

Options

A) 9 yellow-inflated : 3 yellow-constricted : 3 green-inflated: 1 green-constricted ⇒ NOT CORRECT

B) 9 green-inflated : 3 green-constricted : 3 yellow-inflated : 1 yellow-constricted ⇒ CORRECT

C) 9 green-constricted : 3 green-inflated : 3 yellow-constricted : 1 yellow-inflated ⇒ NOT CORRECT

D) 9 yellow-constricted : 3 yellow-inflated : 3 green-constricted : 1 green-inflated ⇒ NOT CORRECT

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3 years ago