1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mel-nik [20]
3 years ago
14

An ecosystem is shown in the illustration. Assume that human activities have led to a decrease in the number of eagles. A virus

attack on rabbits has led to a decrease in their population in the ecosystem. Which two sentences describe likely effects on the ecosystem?
1. There’s an increase in the number of snakes and insects and a decrease in the number of frogs.
2. There’s an increase in the number of snakes and insects, and the storks face increased competition for food.
3. There’s an increase in the number of storks and a decrease in the number of snakes and insects.
4. There’s an increase in the number of frogs and a decrease in the number of storks and insects.
5. There’s a decrease in the number of snakes, insects, and frogs.

SAT
2 answers:
DiKsa [7]3 years ago
8 0

The correct answer is - 2. There's an increase in the number of snakes and insects, and the storks face increased competition for food.

The significant decrease in the number of eagles, because of the human activity, and of the rabbits, because of a virus, has been of great use for the populations of the snakes to increase, as well as the populations of the insects. That has happened because the snakes lost their predator, and the insects lost a competition for a food source, so their numbers rose.

On the other hand, because of the increase of the number of snakes, the storks had started to face increased competition, as both have the same food source, the frogs.

Veronika [31]3 years ago
3 0

Answer:

it is b

Explanation:

You might be interested in
Quando o capitalismo se expandiu pelo mundo?
Vsevolod [243]

<span>En el 13 o 14 siglo! Espero que esto ayude</span>
4 0
3 years ago
Education empowers a person elaborate this statement with example.
Murljashka [212]

Answer:

Education empowers a person by creating more employment opportunities, securing a higher income, developing problem-solving skills, and by providing a a prosperous happy life.

Explanation:

Education empowers a person by opening doors to the job market, combating inequality, fostering solidarity, and promoting environmental stewardship. Education empowers people with the knowledge, skills and values they need to thrive and build a better world.

7 0
2 years ago
In a study of helicopter usage and patient survival, among the 56,074 patients transported by helicopter, 235 of them
xxMikexx [17]

Using the hypergeometric distribution, it is found that the probability is 0.845 = 84.5%.

--------------------

  • The patients are chosen from the sample without replacement, which means that the hypergeometric distribution is used to solve this question.

Hypergeometric distribution:

The probability of x successes is given by:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

The parameters are:

  • x is the number of successes.
  • N is the size of the population.
  • n is the size of the sample.
  • k is the total number of desired outcomes.

Combination formula:

is the number of different combinations of x objects from a set of n elements, given as:

C_{n,x} = \frac{n!}{x!(n-x)!}

--------------------

  • 56074 patients, thus N = 56074
  • Sample of 40, thus, n = 40
  • 235 left against medical advice, thus, k = 235.

The probability that none left against medical advice is P(X = 0), so:

P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}

P(X = 0) = h(0,56074,40,235) = \frac{C_{235,0}*C_{55839,40}}{C_{56074,40}} = 0.845

The probability is 0.845 = 84.5%.

A similar problem is given at brainly.com/question/24008577

6 0
2 years ago
Learning task 3 convert the sentences in learning task 2.
Natalija [7]

The correct adjectives that can be used in the sentences will be:

  • He likes participating in the games. He is so <u>enthusiastic</u>.
  • Our exam yesterday was <u>perplexing</u>.
  • My cousin was so <u>sanguine </u>that we slept very late last night.
  • Maria was <u>thrifty </u>for buying these second-hand bags.
  • Jayson uses only a metal straw to drink. He is <u>weird</u><u>.</u>
  • She has grown up to be a <u>book geek</u> since she just likes to study all the time.
  • Arang, our toddler neighbor, asks a lot of questions. She is so <u>inquisitive</u>.
  • Jessica stays late every night reading books about philosophy. She has become more <u>geriatric </u>than her age.
  • The gifts Nathan gave to his workers were <u>lavish</u>.
  • Our new teacher is <u>placatory</u>.

<h3>What is an adjective?</h3>

It should be noted that adjectives are the words that are used to describe nouns or pronouns.

In this case, the adjectives used are important in turning the sentence into grammatically correct positive statements.

Learn more about adjectives on:

brainly.com/question/550822

4 0
2 years ago
You inherit $10,000 and will invest the money in two stocks paying 6% and 11% annual interests, respectively. How much should be
Paul [167]

Answer:

Explanation:

900=.06x+.111y

x+y=10000

solving together gives

x=4000$

y=6000$

8 0
2 years ago
Other questions:
  • What is main difference between the SAT-I and SAT-II?
    14·1 answer
  • when a farmer crosses two different types of plants to grow one that has a desirable trait from each , this process is known as
    13·1 answer
  • What do the percentiles on the PSAT score report mean?
    11·2 answers
  • Congrats to the class of 2021!!!!!!!!
    7·2 answers
  • Just doing something...
    15·1 answer
  • WRITE ​an essay explaining the importance of making time for both work and play.
    12·1 answer
  • The cost, c, of a ham sandwich at a deli varies directly with the number of sandwiches, n. If c = $54 when n is 9, what is the c
    13·1 answer
  • Please help dont make me wrong
    12·2 answers
  • Which ions, if any, are spectator ions in the reaction agno3(aq)+nacl(aq)→agcl(s)+nano3(aq)?
    13·1 answer
  • Which were british field marshall bernard montgomery’s contributions to the allied war effort? select two correct answers.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!